This is the Bessey STC-HH70-T20 horizontal toggle clamp for use on multi-functional tables with a hole diameter of 20mm and plate thickness of 19mm to 25mm. This model has an automatic and infinitely variable adjustment of the clamping height up to 35mm while the clamping force remains unchangedwithout having to make manual changes to the position of the pressure screws. The clamping force is variable up to 2500n depending on adjustment of the set screw in the cantilevered joint. Features & Benefits Sturdy tempered metal sheets for a long service lifeHigh quality oil resistant two component plastic handleHole pattern on base plate designed to facilitate fast and secure clamping Specifications Opening: 60mmAutomatic Adjustment: 35mmClamping Pressure: 2,500nWeight: 0.51kgPack Quantity: 1